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211.
Mason O. Murphy Mickey Agha Thomas A. Maigret Steven J. Price Michael E. Dorcas 《Urban Ecosystems》2016,19(1):275-286
Animal body sizes in urban areas often differ from nearby rural areas, which may impact population fitness and dynamics. We examined the effects of urbanization on larval body sizes of two species of salamanders, the two-lined salamander (Eurycea cirrigera) and the northern dusky salamander (Desmognathus fuscus). Specifically, we utilized a before-after control-impact (BACI) study design which allowed for the assessment of differences in larval body size between multiple control and impacted sites over a 5 year period. We found a decrease in larval body size in both species at the impacted sites compared to control sites in the first year after urbanization, followed by generally larger body sizes in urban sites compared to control sites in years 3–5, and significantly so in year 4. Using generalized linear models, we found support that larger body sizes post impact in urbanized streams may be due to warmer stream water temperature and decreased abundance of larvae. Both E. cirrigera and D. fuscus are well known for their ability to persist in urbanized streams; our data suggest that despite overall lower abundances in urban streams, persistence may be due to increases in larval body size and, potentially, post-metamorphic benefits. 相似文献
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Raymond Murphy 《The Sociological review》2002,50(3):313-333
There is presently much theoretical discourse claiming that nature is being socially constructed or even abolished. Some authors celebrate this development and others lament it. Still others bracket nature's dynamics out of the analysis. The present paper critically assesses these theories and methodologies concerning relations between social practices and processes of nature. It then develops an alternative argument. The expansion of society into wilderness areas has brought new disturbances of nature into society. Pristine nature has been replaced by socially encompassed primal nature, which retains its capacity for independent dynamics that affect social constructions. Moreover, nature remains embedded in technology and so does its potential to escape control. These hybrids constructed by humans and nonhumans recombine processes and materials of nature. Now that this recombinant nature has been integrated into society and new primal dynamics of nature have been internalised, there is increasing reason to incorporate the forces of nature into sociological analysis. 相似文献
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